. >> traders are poised for more gains as the economy gains steam. can this party last? it's monday, march 18th. >> announcer: from abc news, this is "world news now" with john muller and diana perez. >> hey, wow. >> who? >> they said our names. >> let's hear that again. >> cue that up again. ♪ >> "world news now." >> announcer: from abc news, this is "world news now" with john muller and diana perez. >> sounds nice, right. >> that's you. >> let's do it. >> that's you, me, us. welcoming a familiar face to our anchor desk. here this morning. of course, a face that you recognize. john muller, congratulations. welcome to the team. >> a thrill to be here. i have filled in dozens of times. hopefully a few of you know me. out there. like i said all morning long, i have always been a fan of the show. i always really watched it because i used to do another show cross town locally. i would look up from the makeup chair and be like those poor guys are already up and doing it. what i am about to do. i thought i was the only one up at the hour. i'm a night owl. and i have always l